function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

//esta función abre una nueva ventana con la versión del documento para imprimir
function popdoc(strPK, strLengPK) {
    window.open("PrintDoc.aspx?idDoc=" + strPK + "&idLen=" + strLengPK, "popdoc", "height==" + screen.availHeight - 20 + ",width=670,scrollbars=1,resizable=0,screenX=" + (screen.width - 670) / 2 + ",screenY=" + (screen.height - screen.availHeight - 20) / 2 + ",left=" + (screen.width - 670) / 2) + ",top=0";
    return false;
}

//esta función abre una nueva ventana con la versión del documento para imprimir
function poppup(strURL) {
    window.open(strURL, "poppup", "height==" + screen.availHeight - 20 + ",width=670,scrollbars=1,resizable=0,screenX=" + (screen.width - 670) / 2 + ",screenY=" + (screen.height - screen.availHeight - 20) / 2 + ",left=" + (screen.width - 670) / 2) + ",top=0";
    return false;
}

function validaEmail(strEmail) {
    var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
    var address = strEmail;
    if (reg.test(address) == false) { return false; }
    else {return true;}
}